Porsche Design Key Holder Keyring Loop | BlackThe Porsche Design Keyring Loop has a special closure: a spring mechanism, which opens and closes by means of turning and engaging the key ring. A high tech, elegant alternative to carabiners and co., which makes the addition and removal of keys extremely convenient: Simply pull and turn the side part, insert or remove the key, turn and lock. Your keys are always optimally secured to the keyring. The loop which gives this piece its name is a double